112221202122 has 24 divisors (see below), whose sum is σ = 243202170276. Its totient is φ = 37398416256.

The previous prime is 112221202103. The next prime is 112221202127. The reversal of 112221202122 is 221202122211.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 112064927121 + 156275001 = 334761^2 + 12501^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 112221202095 and 112221202104.

It is not an unprimeable number, because it can be changed into a prime (112221202127) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 640693 + ... + 796824.

Almost surely, 2^112221202122 is an apocalyptic number.

112221202122 is an abundant number, since it is smaller than the sum of its proper divisors (130980968154).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

112221202122 is a wasteful number, since it uses less digits than its factorization.

112221202122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1441862 (or 1441859 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 112221202122 its reverse (221202122211), we get a palindrome (333423324333).

The spelling of 112221202122 in words is "one hundred twelve billion, two hundred twenty-one million, two hundred two thousand, one hundred twenty-two".